Windows 10: Computer is running excessively slow. Can't find solution

  1.    08 Apr 2016 #1

    Computer is running excessively slow. Can't find solution


    My Windows 10 is running excessively slow.
    A few symptoms:

    When I right click my desktop, explorer freeze for 10-15 seconds while the context menu loads.

    Games will attempt to load but will take 5+ minutes to get into the program. Most times games will freeze while attempting to load.

    Non-game programs will not start initially and will take 15-30 seconds to load.

    Booting into windows takes much longer than normal. legacy speed was 15-25 seconds. Recent has been a few minutes.

    Computer specs.
    i7-4790K processor
    Gigabyte Z97-D3H Motherboard
    Radeon R9 390 Nitro 8GB - Graphics card
    16GB Hyper X (4x4GB sticks) - RAM
    Sandisk SDD 250GB - OS drive
    Seagate 3TB drive 7200 RPM - Main HDD

    Things I have tried.
    Cleaning up my SDD to below 55% free space on drive
    Ran sfc /scannow. No errors.
    Ran DISM repair. No avail.
    Shut down most startup items using ccleaner and msconfig. - very little affect.
    attempted No GUI Boot
    Turned off Windows Search - Didn't work
    - Disabled Cortana
    - Reenabled Cortana - Both had no affect on problems
    Flashed BIOS with most recent update - No affect

    Running out of ideas, and I am looking at just reinstalling my OS. The computer has problems with everything except for internet searching it seems.

    Any assistance is greatly appreciated.

    Thank you
      My ComputerSystem Spec


  2. Posts : 20
    Windows 10 pro 64bit
       08 Apr 2016 #2

    you possibly have a virus
      My ComputerSystem Spec

  3.    08 Apr 2016 #3

    Run Malwarebytes free, if it doesn't download, you may have to do it in safe mode...here's the link, and let us know what it finds https://www.malwarebytes.org/dl-confirm/ As Simon says, it may be a virus
      My ComputerSystem Spec

  4.    08 Apr 2016 #4

    I had done that as well, unfortunately forgot to add that. It did find something, but didn't fix the issue. Trying in safe mode now.
      My ComputerSystem Spec

  5.    08 Apr 2016 #5

    Ran in Safe Mode. Nothing found. No affect to fix performance issues.
      My ComputerSystem Spec

  6.    09 Apr 2016 #6

    Try comparing the responsiveness after a clean boot (assuming no virus etc).
    Clean Boot - Perform in Windows 10 to Troubleshoot Software Conflicts - Windows 10 Forums

    Please post a screenshot of your taskmanager organised by CPU use/disk use highest whichever is significant when your PC should be idle.

    When I right click my desktop, explorer freeze for 10-15 seconds while the context menu loads.
    You can diagnose this (assuming your CPU isn't generally busy when it shouldn't be - with Shellexview (free).
    Hide all MS extensions, disable all others, noting the 32 bit option)

    There are many threads on slow login problems (please feel free to search the forum using the search box above) including some very long ones.

    E.g. "slow login"
      My ComputerSystem Spec

  7.    09 Apr 2016 #7

    I found the culprit. The hard drive is failing. Did a read/write test yesterday and it was making out at 2.5 Mbps with a lot of reallocated sectors.
      My ComputerSystem Spec

  •    09 Apr 2016 #8

    Ok, missed the idea of suggesting checking SMART params..:) - which you presumably have done.

    Hope you've got or can make backups.
    If your system disk is failing, if you are VERY lucky you should create a disk image.. but this relies on being able to read the disk. So unless you already have disk images, you won't be easily able to migrate to a new hard disk, and will have to start with a clean install.

    Note- swapping the disk is no problem as regards Win 10 activation.
      My ComputerSystem Spec

  •    09 Apr 2016 #9

    If you can't clone it, checkout SpinRite software for fixing your HD (grc.com). Ancient software that can even help SSD. You will have to pay for it, but it can repair problems that no other software can. If SpinRite does the job, you will then be able to clone the disk (presuming you are not able to clone it now).
      My ComputerSystem Spec


  • Posts : 24
    Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
       12 Mar 2018 #10

    Malwarebytes to the rescue


    AnEdge said: View Post
    Run Malwarebytes free, if it doesn't download, you may have to do it in safe mode...here's the link, and let us know what it finds https://www.malwarebytes.org/dl-confirm/ As Simon says, it may be a virus
    Saw this while trying to sort EXCESSIVELY SLOW performance from W10x64 Home. I had run Malwarebytes Premium full scan and it found 2 instances of BrowserHelper.DLL and labelled them as PUP probably unwanted programmes. After asking Malwarebytes to delete these I see there may be some utility in having them (or, one of them). But they are gone.

    My PC is back to its normal speed.

    Good to see the ref to Malwarebytes; it can help in some circumstances.

    As good as having the PC back to a healthy state.
      My ComputerSystem Spec


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